<template>
<el-container class="home_container">
    <!-- 头部区域 -->
    <el-header>
        <div>
            <img src="../assets/home_icon.jpg">
            <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
    </el-header>
    <!-- 页面主题区域 -->
    <el-container>
        <!-- 侧边栏 -->
        <el-aside :width="isCollapse?'64px':'200px'">
            <div class="toggle-button" @click='toggleColl'>|||</div>
            <!-- 侧边栏菜单区域 -->
            <el-menu background-color="#333744" text-color="#fff" active-text-color="#409FFF"  :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
                <!-- 一级菜单 -->
                <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
                    <!-- 一级菜单模板区域 -->
                    <template slot="title">
                        <!-- 图标 -->
                        <i :class="iconsObj[item.id]"></i>
                        <!-- 文本 -->
                        <span>{{item.authName}}</span>
                    </template>
                    <!-- 二级菜单 -->
                    <el-menu-item :index="'/'+subItem.path+''" v-for="subItem in item.children" :key="subItem.id" @click=" saveNavState('/'+subItem.path)">
                        <template slot="title">
                        <!-- 图标 -->
                        <i class="el-icon-menu"></i>
                        <!-- 文本 -->
                        <span>{{subItem.authName}}</span>
                    </template>
                    </el-menu-item>
                </el-submenu>
            </el-menu>
        </el-aside>
        <!-- 右侧主体内容 -->
        <el-main>
            <!-- 路由占位符 -->
            <router-view></router-view>
        </el-main>
    </el-container>
</el-container>
</template>

<script>
export default{
    data(){
        return{
            // 左侧菜单数据
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-users',
                '103':'iconfont icon-codepen',
                '101':'iconfont icon-cart',
                '102':'iconfont icon-file-text2',
                '145':'iconfont icon-briefcase'
            },
            // 是否折叠
            isCollapse:false,
            // 被激活的链接地址
            activePath:''
        }
    },
    // 生命周期函数
    created(){
        this.getMenuList()
        this.activePath=window.sessionStorage.getItem('activePath')
    },
    methods:{
        logout(){
            // 退出登录
            window.sessionStorage.clear();
            this.$router.push("/login");
        },
        // 获取左侧菜单
        async getMenuList(){
            const {data:res}=await this.$http.get('menus')
            console.log(res,'kkkk');
            if(res.meta.status!==200) return this.$message.error(res.meta.msg)
            this.menulist=res.data
            console.log(res)
        },
        // 点击按钮切换菜单折叠与展开
        toggleColl(){
            this.isCollapse=!this.isCollapse
        },
        // 保存链接激活状态
        saveNavState(activePath){
            window.sessionStorage.setItem('activePath',activePath)
            this.activePath=activePath;
        }
    }
};
</script>

<style lang="less" scoped>
.home_container{
    height:100%;
}
.el-header{
    background-color:#373d41;
    display:flex;
    justify-content:space-between;
    padding-left:0;
    align-items:center;
    color:#fff;
    font-size:20px;
    >div{
        display:flex;
        align-items:center;
        img{
            width:70px;
            height:70px;
            border-radius:50%;
        }
    }
}
.el-aside{
    background-color:#333744;
    .el-menu{
        border-right:none;
    }
}
.el-main{
    background-color:#eaedf1;
}
.iconfont{
    margin-right:10px;
}
.toggle-button{
    background-color:#4A5064;
    font-size:10px;
    text-align:center;
    line-height:24px;
    color:#fff;
    letter-spacing:0.2em;
    cursor:pointer;
}

</style>
